11317638768 has 40 divisors (see below), whose sum is σ = 29249961216. Its totient is φ = 3770904000.

The previous prime is 11317638767. The next prime is 11317638797. The reversal of 11317638768 is 86783671311.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11317638768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11317638767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62703 + ... + 162993.

Almost surely, 2^11317638768 is an apocalyptic number.

It is an amenable number.

11317638768 is an abundant number, since it is smaller than the sum of its proper divisors (17932322448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11317638768 is a wasteful number, since it uses less digits than its factorization.

11317638768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102653 (or 102647 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 51.

The spelling of 11317638768 in words is "eleven billion, three hundred seventeen million, six hundred thirty-eight thousand, seven hundred sixty-eight".